406590816 has 24 divisors (see below), whose sum is σ = 1067301144. Its totient is φ = 135530240.

The previous prime is 406590797. The next prime is 406590839. The reversal of 406590816 is 618095604.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117565 + ... + 2117756.

It is an arithmetic number, because the mean of its divisors is an integer number (44470881).

Almost surely, 2^406590816 is an apocalyptic number.

It is an amenable number.

406590816 is an abundant number, since it is smaller than the sum of its proper divisors (660710328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406590816 is a wasteful number, since it uses less digits than its factorization.

406590816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235334 (or 4235326 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 406590816 is about 20164.0972027016. The cubic root of 406590816 is about 740.8310701982.

The spelling of 406590816 in words is "four hundred six million, five hundred ninety thousand, eight hundred sixteen".